Static mixer



FIG. 1 is a top perspective view of a static mixer;

FIG. 2 is an enlarged first end view thereof;

FIG. 3 is an enlarged second end view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an enlarged detail view of portion 6 of FIG. 4 ; and,

FIG. 7 is an enlarged detail view of portion 7 of FIG. 1 .

The dot dash broken line indicates cutoff boundaries for enlarged detailed portion views and form no part of the claim. 

CLAIM The ornamental design for a static mixer, as shown and described. 